ML20076F521

Telecopy Ro:On 830812,core Spray Weld DCS-1-7 Had Intermittent Indication on Pipe Side of Weld Approx 41% Through Wall Depth.Reactor Water Cleanup Weld DSRWC-1-3 Had Two Indications Approx 5 Inches Long

ML20076F521
Person / Time
Site:	Browns Ferry
Issue date:	08/15/1983
From:	Coffey J TENNESSEE VALLEY AUTHORITY
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
NUDOCS 8308260068
Download: ML20076F521 (2)

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152 830815 861 l!S N R C P F. . ' ' r1.I TELECOPY 'f0 NRc:0RGIA Aug. 15, 1983 nA U. S. Nuclear Regulatory Commissitn'UC 23 A 9 : 4 6 Region II 101 Marietta Street, NW Suite 3100 Atlanta, Georgia 30303 BFRO-50-259/83049R1 Reported under Technical Specification 6.7 2.A.(3)

Telecooy Date 8/15/83 Time 0800 Date of Occurrence: 8/12/83 Time of occurrence: 1400 Unit 1 Technical Specification Involved: 3.6.G Conditions Prior to Occurrence Unit 1 in refueling outage Unit 2 at 3139 MWt Unit 3 at 3081 MWt Identification and Descriotion of Occurrence. (Correction to original)

Weld DCS-1-7 (core spray) has an intermittent indication on the pipe side of the weld that is 360-degrees in length and approximately 41-percent through wall depth. This is a 12-inch, 304 stainless steel, schedule 80 pipe. The cracking is between the manual isolation valve and the testable check valve (inboard contairment isolation valve).

Weld DSRWC-1-3 (Reactor Water Cleanup) has two indicators that are approximately 5" long between 11:30 and 2:30 and 1-1/2" long between 8:30 and 9:30 with a through wall depth of greater than 805 This is a 6-inch, j 304 stainless steel, schedule 80 pipe. The cracking is between the inboard and outboard containment isolation valves.

Uodate Item l

l To date the attached are our inspection results:

h fActing N-A. Co ey.

Power Plant Superintendent Browns Ferry Nuclear Plant f

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r 8308260068 830815

• a ATTACHMENT - BFRO 50-259/81049R1 -

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Total Inspection Inspection Inspection Welds with Under Reauired Comolete Satisfactory Cracks Evaluatior.

, Core Spray 27 18 12 1 5

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WW 5 2 0 1 1 RHR (Head Spray) 21 15 15 0 0 SATISFACTORY Core Spray DCS 1-6, 9, 14, 15,18 4

DSCS 1-4, 5, 6, 8, 9, 10, 11, 12, 13 i RHR (Head Spray) DHS 1-2, 3 DSHS 1-1A, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 i UNDER EVALUATION Core Spray DCS 1-8, 16 17

DSCS 1-4, 5 I

RWCU DSRWC 1-2 l

RHR (Head Spray) None This is an update of the event reported previously on 8/11/83 t

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